Squirrel Proof Tube

Lowest cost squirrel proof feeder on the market. Designed to defeat the most determined squirrels. Simple, effective mechanism uses gravity to protect bird seed. The feeder must be located where squirrels can only approach from above. When a squirrel approaches from above, and gets on the feeder, it's bodyweight lowers a protective sleeve over the seed ports, shutting off access to the seed. Holds one pound of sunflower or mixed seed.